#include <TError.h>
void ShowMixInfo(TString fileName)
{
   //   AliLog::SetClassDebugLevel("AliMixEventCutObj", AliLog::kDebug);

   TFile *f = TFile::Open(fileName.Data());
   if (!f) {
      ::Error("ShowMixInfo.C", Form("Problem opening file %s !!!", fileName.Data()));
      return;
   }
   TList *list = (TList*) f->Get("cMixInfoList");
   if (list) list->Print();
   AliMixInfo *mi = (AliMixInfo*) list->FindObject("mixInfo");
   if (mi) {

      mi->Draw(/*"HIST"*/);
   }

}